Discrete Outputs
The discrete outputs are +24 VDC. They are electrically isolated up to 500
VAC. See Figure 1-16 for a typical discrete output alarm connection.
CONTROLLER DISCR ETE INPUT
HFG2.0 DISCRETE OUTPUT
FAULT RTN
[WH T/ORN]
OVERTEMP RTN
[WH T/BLK]
FAULT ALARM
[ORN]
OVERTEMP ALARM
[BLK]
CONTROLLER DISCRETE INPUT
HFG2.0 DISCRETE OUTPUT
FAULT ALARM
[ORN]
OVERTEMP ALARM
[BLK]
FAULT RTN
[WHT/ORN]
OVERTEMP ALARM RTN [WHT/BLK]
Figure 1-16. Typical Discrete Output Alarm Connections
RS232 Serial Communications Interface
Signal levels for the serial communications input and output are per
RS232 standards. See Figure 1-17 for a typical RS232 serial interface
connection. See Table 1-5 for computer COM port pin-outs for RS232.
Figure 1-17. Typical RS232 Serial Interface Connection
INSTALLING THE HFG2.0
21
Summary of Contents for Gas Fuel Metering Valve HFG2.0
Page 15: ...Figure 1 4 HFG2 0 Dimensions 1 Piece Housing INSTALLING THE HFG2 0 9...
Page 16: ...10 HFG2 0 USER GUIDE Figure 1 5 HFG2 0 Mounting Orientations...
Page 30: ...24 HFG2 0 USER GUIDE INTENTIONALLY BLANK...
Page 34: ...28 HFG2 0 USER GUIDE Figure 2 1 HFG2 0 Electronics System Block Diagram...
Page 40: ...34 HFG2 0 USER GUIDE Figure 2 2 HFG2 0 Cut Away View Actuator Main Housing Assembly...
Page 41: ...Figure 2 3 HFG2 0 Cut Away View Partial CH 2 UNDERSTANDING THE HFG2 0 35...
Page 43: ...Figure 2 5 Typical Refurbishment Plate CH 2 UNDERSTANDING THE HFG2 0 37...
Page 44: ...38 HFG2 0 USER GUIDE INTENTIONALLY BLANK...
Page 47: ...Figure 3 1 HFG2 0 Basic Operation Flow Chart CH 3 OPERATING THE HFG2 0 41...
Page 58: ...52 HFG2 0 USER GUIDE INTENTIONALLY BLANK...
Page 60: ...54 HFG2 0 USER GUIDE INTENTIONALLY BLANK...
